CVE-2024-49924

In the Linux kernel, the following vulnerability has been resolved: fbdev: pxafb: Fix possible use after free in pxafbtask In the pxafbprobe function, it calls the pxafbinitfbinfo function, after which &fbi-task is associated with pxafbtask. Moreover, within this pxafbinitfbinfo function, the...

CVE-2024-49903

In the Linux kernel, the following vulnerability has been resolved: jfs: Fix uaf in dbFreeBits syzbot reported ================================================================== BUG: KASAN: slab-use-after-free in mutexlockcommon kernel/locking/mutex.c:587 inline BUG: KASAN: slab-use-after-free in...

AZL-51360 CVE-2024-49883 affecting package kernel for versions less than 5.15.173.1-1

In the Linux kernel, the following vulnerability has been resolved: ext4: aovid use-after-free in ext4extinsertextent As Ojaswin mentioned in Link, in ext4extinsertextent, if the path is reallocated in ext4extcreatenewleaf, we'll use the stale path and cause UAF. Below is a sample trace with dumm...

CVE-2024-49876

In the Linux kernel, the following vulnerability has been resolved: drm/xe: fix UAF around queue destruction We currently do stuff like queuing the final destruction step on a random system wq, which will outlive the driver instance. With bad timing we can teardown the driver with one or more wor...

CVE-2024-49865

In the Linux kernel, the following vulnerability has been resolved: drm/xe/vm: move xaalloc to prevent UAF Evil user can guess the next id of the vm before the ioctl completes and then call vm destroy ioctl to trigger UAF since create ioctl is still referencing the same vm. Move the xaalloc all t...

CVE-2024-49950 Bluetooth: L2CAP: Fix uaf in l2cap_connect

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix uaf in l2capconnect Syzbot reported BUG: KASAN: slab-use-after-free in l2capconnect.constprop.0+0x10d8/0x1270 net/bluetooth/l2capcore.c:3949 Read of size 8 at addr ffff8880241e9800 by task kworker/u9:0/54 CP...

CVE-2024-49950 Bluetooth: L2CAP: Fix uaf in l2cap_connect

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix uaf in l2capconnect Syzbot reported BUG: KASAN: slab-use-after-free in l2capconnect.constprop.0+0x10d8/0x1270 net/bluetooth/l2capcore.c:3949 Read of size 8 at addr ffff8880241e9800 by task kworker/u9:0/54 CP...

CVE-2024-49943

CVE-2024-49943 affects the Linux kernel DRM XE driver (guc_submit_wedged_fini). A missing locking around wedged_fini permits a use-after-free when a non-wedged queue is dereferenced concurrently with an async queue destroy. The fix is to hold the submission_state lock during the wedge-status chec...

CVE-2024-49943 drm/xe/guc_submit: add missing locking in wedged_fini

In the Linux kernel, the following vulnerability has been resolved: drm/xe/gucsubmit: add missing locking in wedgedfini Any non-wedged queue can have a zero refcount here and can be running concurrently with an async queue destroy, therefore dereferencing the queue ptr to check wedge status after...

CVE-2024-49936 net/xen-netback: prevent UAF in xenvif_flush_hash()

In the Linux kernel, the following vulnerability has been resolved: net/xen-netback: prevent UAF in xenvifflushhash During the listforeachentryrcu iteration call of xenvifflushhash, kfreercu does not exist inside the rcu read critical section, so if kfreercu is called when the rcu grace period en...

CVE-2024-49936 net/xen-netback: prevent UAF in xenvif_flush_hash()

In the Linux kernel, the following vulnerability has been resolved: net/xen-netback: prevent UAF in xenvifflushhash During the listforeachentryrcu iteration call of xenvifflushhash, kfreercu does not exist inside the rcu read critical section, so if kfreercu is called when the rcu grace period en...

CVE-2024-49936 net/xen-netback: prevent UAF in xenvif_flush_hash()

In the Linux kernel, the following vulnerability has been resolved: net/xen-netback: prevent UAF in xenvifflushhash During the listforeachentryrcu iteration call of xenvifflushhash, kfreercu does not exist inside the rcu read critical section, so if kfreercu is called when the rcu grace period en...

CVE-2024-49936

CVE-2024-49936 concerns a use-after-free in the Linux kernel net/xen-netback path (xenvif_flush_hash) during an RCU iteration. The bug happens when kfree_rcu is invoked inside the RCU read-critcal section, causing an access to head->next after the entry is freed, leading to UAF. The mitigation...

CVE-2024-49925 fbdev: efifb: Register sysfs groups through driver core

In the Linux kernel, the following vulnerability has been resolved: fbdev: efifb: Register sysfs groups through driver core The driver core can register and cleanup sysfs groups already. Make use of that functionality to simplify the error handling and cleanup. Also avoid a UAF race during...

CVE-2024-49924 fbdev: pxafb: Fix possible use after free in pxafb_task()

In the Linux kernel, the following vulnerability has been resolved: fbdev: pxafb: Fix possible use after free in pxafbtask In the pxafbprobe function, it calls the pxafbinitfbinfo function, after which &fbi-task is associated with pxafbtask. Moreover, within this pxafbinitfbinfo function, the...

CVE-2024-49924 fbdev: pxafb: Fix possible use after free in pxafb_task()

In the Linux kernel, the following vulnerability has been resolved: fbdev: pxafb: Fix possible use after free in pxafbtask In the pxafbprobe function, it calls the pxafbinitfbinfo function, after which &fbi-task is associated with pxafbtask. Moreover, within this pxafbinitfbinfo function, the...

CVE-2024-49925 fbdev: efifb: Register sysfs groups through driver core

In the Linux kernel, the following vulnerability has been resolved: fbdev: efifb: Register sysfs groups through driver core The driver core can register and cleanup sysfs groups already. Make use of that functionality to simplify the error handling and cleanup. Also avoid a UAF race during...

CVE-2024-49925 fbdev: efifb: Register sysfs groups through driver core

In the Linux kernel, the following vulnerability has been resolved: fbdev: efifb: Register sysfs groups through driver core The driver core can register and cleanup sysfs groups already. Make use of that functionality to simplify the error handling and cleanup. Also avoid a UAF race during...

CVE-2024-49924 fbdev: pxafb: Fix possible use after free in pxafb_task()

In the Linux kernel, the following vulnerability has been resolved: fbdev: pxafb: Fix possible use after free in pxafbtask In the pxafbprobe function, it calls the pxafbinitfbinfo function, after which &fbi-task is associated with pxafbtask. Moreover, within this pxafbinitfbinfo function, the...

CVE-2024-49903 jfs: Fix uaf in dbFreeBits

In the Linux kernel, the following vulnerability has been resolved: jfs: Fix uaf in dbFreeBits syzbot reported ================================================================== BUG: KASAN: slab-use-after-free in mutexlockcommon kernel/locking/mutex.c:587 inline BUG: KASAN: slab-use-after-free in...